Rotary engine.



PATENTED JULY 23,1907.

I L. E. CUMMINGS. ROTARY ENGINE APPLIGATIQN FILED SEPT-1 1906.

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- I v I awuwwtoz No. 861,164. v PATENTED JULY 23, 1907.

- L. ROUMMINGS.

ROTARY ENGINE.

APPLICATION FILED QEPT. 1906.

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PATENTED JULY 23, 1907.

L. E. CUMMINGS. ROTARY ENGINE. APP-LIC AT10N rum) SEPT. 1. 1900 4 SHEETS-SHEET 3- Wiho mow Q'OEI'QMUJIQ/ a ZWW was Nollms PKTIRJ cm, WASHI N|ITON, n. c

No. 861,164. I PATENTED JULY 23, 1907.

L. E. CUMMINGS.

ROTARY ENGINE.

APPLICATION-BLED SEPT. 1. 1906.

4 SHEETS-SHEET 4- ma MM" fl g UNITED STATES PATENT OFFICE.

LOUIS E. CUMMINGS, OF ST. JOSEPH, MISSOURI, ASSIGNOR TO THOMAS W. STAMEY AND JOHN W. STAMEY, OF ST. JOSEPH, MISSOURI.

ROTARY ENGINE N0. 861,164. Specification of Letters Patent. Patented July 23, 1907.

Application filed September 1, 1906. Serial No. 332,960. I

To all whom it may concern: O- are paddles operating in guideways O O. 55

Be it known that I, LoUIs E. CUMMINGS, a citizen of m m are guides for guiding paddles O 0 past ports the United States, residing at St. Joseph, in the county m m in endless partition M. of Buchanan and State of Missouri, have invented cer- P P are springs at the inner ends of said paddles tain new and useful Improvements in Rotary Steamwhich also operate in said guideways and P P are ex- Engines; and I do declare the following to be a full, haust valves. The steam entering ports J J presses 60 clear, and exact description of the invention, such as against these paddles by its force revolving the cylinwill enable others skilled in the art to which it apperder after each of said springs has pressed its paddle outtains to make and use the same, reference being had to ward after the paddle has passed an exhaust.

the accompanying drawings, and to the letters and fig- P P are steam valves.

ures of reference marked thereon, which form a part of R is a grooved bearing showing how the steam valve 65 this specification. opens and closes.

The object of my invention is to provide a rotary S S are bearings. steam engine that will occupy an unusually limited From the foregoing description it will be readily space, that may be attached to a shaft in any position; seen that as the steam passes through ports J J into that is extremely simple in constniction and of low cost; steam chest 0 and each paddle is revolved beyond an 70 in which there is no back pressure of steam and that exhaust P, each spring pushes and holds its paddle will produce a maximum of power from a minimum of outward against shell 0 and the incoming live steam fuel. I by its pressure upon the paddles revolves the steam I attain my object by the mechanism illustrated in cylinder.

the accompanying drawings in which, What I claim and desire to secure by Letters Patent 7 5 Figure 1 is a longitudinal section of the engine; Fig. i 2 isa detail of a steam valveand-Fig. 3 a detail showing 1. In a rotary steam engine the combination with a supa side elevation of the valve shown in Fig, 2; Fi 4 i port, connecting and exhaust pipes, a drive Wheel and belt a cross section of the engine. 5 isa detail of a Steam pulley, of a shaft and the revoluble cylinder carried there- 7 o 4 on, a shell and a steam chest inclosed therein, a jacket paiddle and Spnng f g 6 depafl Sectlon of forming" a dead air chamber outside said shell, a partition smd Paddle and p g- 7 1s a slde 590131011311 eleva' consisting of a plurality of corresponding irregular curves vation of the engine showing the exhaust and steam contacting alternately with the shell of said steam chest valves in Operation the upper half of the fioure ShOW and the periphery of the revoluble cylinder, ports for the admission of live steam and for the escape of exhaust 30 mg the hve Steam f the F steam and the exhaust chamber, a plurality of. guideways haust or waste steam side; Fig.8 isadetail cross section in Said revoluble cylinder Opening- Out f the periphery of of an endless partition and the parts therein, shown at the same into said steam chest, a plurality of paddles opli f Fi 9 d i 9 i a detail longitudinal crating in said guideways and the springs at the inner section showin the construction of the endless partiends thereof adapted Dress. Sflld p f Outward and I keep them in contact with said partition as each paddle 35 tlonpasses an exhaust port and receives the live steam, sub- Similar letters refer to similar parts in the several stantially as shown and described. i 2. The combination with a steam chest having ports for the supply and exhaust of steam, of a rotary shaft, a revo- A repl esents a suppolt E01 the engme and B Jacket luble cylinder carried on said shaft, an endless partition for the Same' consisting of a plurality of irregular curves adapted to con- 40 O is the steam chest and G the shell thereof. 0 is a tact with interior of the shell of the steam chest and exdead air space between said jacket and shell to keep tei'ior of the periphery of the revoluble cylinder, alterthe cold air from said chest and prevent the Steam nately, a plurality of guideways having their outlets in the periphery of said cylinder, paddles operating in said guidemg C1 1111ed- Ways each adapted to be forced back Within said periphery D is the shaft and E E the parts Ofjt revoluble as its guideway is revolved into engagement with an inner 45 li d i d b id h ft curve of the partition, and springs back of said paddles H is a drive Wheel a belt pulley I a Steam pipe each adapted to force and hold its paddle out into engagement with partition while the guideway is being revolved adapted to form connectl0n between any sulmble to the next inner curve of the partition and next exhaust, boiler and the cylinder and J J are ports for the adsubstantially as et forth and shown.

mission of steam from said pipeinto said steam chest. In testimony whereof, I flfiiX y Signature, in presence 50 L L are exhaust ports, L an exhaust chamber, and of two Witnesses L an exhaust pipe. LOUIS E. CUMMINGS.

M is a partition between said exhaust chamber and Witnesses the steam chest. M is a side plate fitting against said HILLYARD,

steam chest. WM. B. SNYDER. l 

